{"id":27863,"date":"2020-05-29T20:56:13","date_gmt":"2020-05-29T20:56:13","guid":{"rendered":"https:\/\/www.hubbardhall.com\/?post_type=case_studies&p=27863"},"modified":"2021-07-28T14:23:34","modified_gmt":"2021-07-28T14:23:34","slug":"fluoride-removal","status":"publish","type":"case_studies","link":"https:\/\/www.hubbardhall.com\/proof\/case-studies\/fluoride-removal","title":{"rendered":"The Perfect Mix: Exceeding Guidelines and Reducing Costs in Wastewater Treatment"},"content":{"rendered":"

\u201cThe manufacturer sincerely thanked us for our work and support, something their previous supplier did not do or supply. Visits from Hubbard-Hall have impressed them, and they are looking forward to the continued relationship.\u201d<\/strong><\/em>
\nDavid Joyce, <\/strong><\/em>Wastewater Specialist, <\/strong><\/em>Hubbard-Hall<\/strong><\/em><\/p>\n

Executive Summary<\/strong>
\nAn aluminum packaging manufacturer was exceeding wastewater limits for fluoride.
\n\u2022 AquaPure\u00ae CAL 225 was used to coagulate the fluoride.
\n\u2022 Effluent rates dropped from 15 ppm to 7 ppm or less.
\n\u2022 Flocculation of suspended particles was easier to perform.
\n\u2022 $25,000+ in resulted chemistry savings.
\n\u2022 Company increased capacity with 3rd production line.<\/p>\n

The Challenge<\/strong>
\nAn aluminum can manufacturing material had fallen out of compliance with its local and state wastewater treatment jurisdictions on levels of fluoride being discharged from the plant. The plant\u2019s influent fluoride level was 60 ppm, and its discharge limit was 15 ppm. Some manufacturers utilize fluoride-containing chemicals in order to improve aluminum passivation on its products, but effluents that contain fluoride need to be properly treated to reduce its concentration to disposable values before being discharged into public wastewater systems.
\nIn addition, the aluminum can manufacturer needed to reduce the level of manganese in its discharge, as well as in its chemical oxygen demand (COD), a determination of the quality of the facility\u2019s discharge that provides a metric to determine the effect an effluent will have on the wastewater treatment system, much like biochemical oxygen demand (BOD). The manufacturer was using a supplier who could not reduce the fluoride, manganese or COD levels, and called in the experts from Hubbard-Hall to assess the situation.<\/p>\n

The Approach<\/strong>
\nHubbard-Hall\u2019s team of technicians took a very methodical approach to diagnosing the issue and making the proper recommendations, including looking holistically at the entire wastewater treatment system, including all the setup, chemistries and equipment currently being used:
\n\u2022 First, the team set out to evaluate the health of the manufacturer\u2019s wastewater system by conducting an audit to look at all aspects of the internal process. The goal was to look for ways to optimize the system where it could be improved, and provide process improvement recommendations that includes the required training for the facility operators of the system.
\n\u2022 Second, the ensuing evaluation consisted of a full diagnosis of the system, beginning with a project outline meeting in which Hubbard-Hall\u2019s expert technicians discuss the existing state of the wastewater system and reviews any potential process improvements. Those could include reducing waste, costs and energy usage, and eliminating discharge issues.
\n\u2022 Third, a physical examination of the system by Hubbard-Hall\u2019s team follows to assess equipment setup, and also to ensure the type and suitability of the wastewater treatment system. That also includes taking influent samples back to the Hubbard-Hall lab to perform \u201cjar tests,\u201d which simulates a full-scale water treatment process and provides technicians a reasonable idea of the way a treatment chemical will behave and operate with a particular type of raw water.
\nThe Hubbard-Hall team\u2019s recommendation was to utilize AquaPure\u00ae CAL 225, a concentrated blended inorganic coagulant that offers excellent conditioning characteristics in a variety of wastewater to remove fluoride and ortho- and pyro-phosphates that are generally present in alkaline cleaning and metal finishing wastewater.<\/p>\n

The Outcome<\/strong>
\nAquapure CAL 225 is a special blend designed to attract dissolved fluoride and Phosphate Ions from wastewater while it neutralizes negative charges which hold suspended particles in solution which allowed for easier flocculation in the manufacturer\u2019s wastewater system. During a one week trial, the manufacturer reported discharging fluoride at 7 ppm or even lower, as well as a reduction in manganese and C.O.D. levels. In addition to meeting and exceeding the local and state wastewater discharge guidelines, the manufacturer reported they expected to see an overall cost savings of over $25,000 per year by using AquaPure\u00ae CAL 225 compared to their previous chemistry. Also, the manufacturer announced that they planned to open an additional third processing line now that they can adequately meet effluent guidelines, thus increasing their capacity even more and also increasing their year-over-year cost savings.<\/p>\n

 <\/p>\n

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